Separable slide fastener

Abstract

A separable slide fastener comprises a pair of stringers, a slider and a separable bottom end assembly. Such bottom end assembly includes a socket connected to one of the paired stringers, a first pin projecting from the socket and secured to that stringer, and a second similar pin connected to the other stringer and having a planar outer surface. The first pin has a first outer flat surface disposed adjacent to and flush with the second pin, and a second outer surface extending from the first flat surface and beveled toward the plane of the associated stringer.

What is claimed is: 
     
       1. A separable slide fastener comprising: (a) a pair of oppositely disposed stringers each carrying a row of coupling elements along one longitudinal edge portion thereof;   (b) a slider movable reciprocably on and along said pair of stringers to couple and uncouple the coupling elements, said slider including a substantially Y-shaped guide channel for the passage of said rows of coupling elements and a locking prong movable into and out of said guide channel for releasably locking said slider on said rows of coupling elements; and   (c) a separable bottom end assembly mounted on adjacent lower ends of said stringers and including; (1) a socket member fixedly connected to one of said stringers;   (2) a first separate pin member projecting from said socket member and fixedly connected to said one stringer, said first separate pin member being receivable in said guide channel of said slider;   (3) a second separate pin member fixedly connected to the other of said stringers in opposite relation to said socket member and said first separate pin member and receivable in said guide channel and said socket member, said second pin member having a substantially planar outer surface extending substantially parallel to the general plane of said slide fastener; and   (4) said first pin member having a first outer flat surface disposed adjacent to said second pin member and extending substantially flush with said planar outer surface of said second pin member, and a second outer beveled cam surface contiguous to said first flat outer surface and extending away from said second pin member downwardly toward the plane of said one stringer, said second outer beveled cam surface being engageable with said locking prong to cause the latter to move upwardly along said beveled cam surface into engagement with said first outer flat surface, in response to threading movement of said second pin member into said guide channel of said slider and said socket member while said slider is at rest on said socket member.     
     
     
       2. A separable slide fastener according to claim 1, said second outer beveled cam surface extending from a distal end of said first pin member toward said socket member and terminating short of said socket member. 
     
     
       3. A separable slide member according to claim 1, said sider having a spring biasing said locking prong toward one of said rows of coupling elements.